tfe_workspace execution_mode deprecated

[zachreborn]

Describe the bug

execution_mode is deprecated for terraform workspaces in tfe_workspace

Warning: Argument is deprecated
with module.octo_prod_infrastructure.tfe_workspace.this
on .terraform/modules/octo_prod_infrastructure/modules/terraform/workspace/main.tf line 21, in resource "tfe_workspace" "this":
  execution_mode                = var.execution_mode
Use resource tfe_workspace_settings to modify the workspace execution settings. This attribute will be removed in a future release of the provider.

To Reproduce

v2.14.2

module "octo_prod_infrastructure" {
  source                = "github.com/zachreborn/terraform-modules//modules/terraform/workspace?ref=v2.14.2"
  assessments_enabled   = false
  enable_dynamic_auth   = true
  dynamic_auth_role_arn = "arn:aws:iam::1111111111:role/terraform_cloud"
  identifier            = "zachreborn/octo_prod_infrastructure"
  name                  = "octo_prod_infrastructure"
  oauth_token_id        = var.octo_github_oauth_token_id
  organization          = var.octo_organization
  permission_map        = var.octo_admin_only_workspace_permissions_mapping
  terraform_version     = var.terraform_version
}